Thermostat, placed at some accommodation space actuates the Master Solenoid Valve of the plant, which will stop the Compressor, when preset temperature is reached

Capacity unloader of compressor units, does last step controlling, as required

Particular zone temperature

Controlled by flap valve fitted in each zone loop

Local cabin temperature can be adjusted by volume control at delivery point of air duct controller.

Write a note on Ozone depletion ?

Ozone is gas; between 15 & 30 kilometer above the surface of earth.

This layer controls our climate & protects us from radiation.

The release of industrial waste and other process are now increasing the ozone breakdown to disturb the natural balance.

Pollutant (e.g. CFC) gas from ground level travel to atmosphere.

In the upper atmosphere Ultra Violet Ray breaks off Chlorine atom from the CFC molecule.

The free chlorine atom attack the one ozone molecule. Breaking it form to chloromonoxide. The remainder of the ozone molecule formed into regular oxygen molecule.

A free oxygen atom now steels the oxygen from chloromonoxide molecule form an oxygen molecule. Chlorine atom is again free, attack and break up an ozone molecule. In this way single chlorine atom destroy 1 million of ozone molecule.